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Related Experiment Video

Updated: Jun 22, 2026

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
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Published on: August 5, 2013

Efficient and tolerant resonant grating coupler for multimode optical interconnections.

N Destouches, D Blanc, J Franc

    Optics Express
    |June 25, 2009
    PubMed
    Summary

    Researchers achieved over 60% coupling efficiency in an optical interconnect using a resonant grating coupler. This method enhances grating coupling strength for improved performance compared to traditional mirror inserts.

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    Area of Science:

    • Photonics
    • Optical Engineering
    • Materials Science

    Background:

    • Optical interconnects are crucial for high-speed data transmission.
    • Efficient light coupling into and out of waveguides is a key challenge.
    • Existing methods often involve complex structures or lower efficiencies.

    Purpose of the Study:

    • To demonstrate a high-efficiency optical interconnect.
    • To enhance grating coupler performance using leaky mode resonance.
    • To compare the efficiency with existing technologies.

    Main Methods:

    • Fabrication of an optical interconnect demonstrator.
    • Integration of input and output grating couplers.
    • Utilizing leaky mode resonance to enhance grating coupling strength.

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    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
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  • Characterization of overall coupling efficiency.

    • Main Results:

    • Achieved over 60% overall coupling efficiency.
    • Demonstrated enhanced grating coupling strength via leaky mode resonance.
    • Resonant grating coupler performance favorably compared to mirror inserts.

    Conclusions:

    • Leaky mode resonance is an effective method for enhancing grating coupler efficiency.
    • The developed optical interconnect shows promising performance for future applications.
    • This approach offers a competitive alternative to existing coupling techniques.